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Radeon HD 5450 vs Radeon HD 7750
Intro
The Radeon HD 5450 comes with a core clock speed of 650 MHz and a DDR3 memory frequency of 800 MHz. It also uses a 64-bit memory bus, and uses a 40 nm design. It is made up of 80(16x5) SPUs, 8 Texture Address Units, and 4 Raster Operation Units.Compare those specs to the Radeon HD 7750, which features GPU clock speed of 800 MHz, and 1024 MB of GDDR5 RAM running at 1125 MHz through a 128-bit bus. It also is comprised of 512 SPUs, 32 Texture Address Units, and 16 ROPs.
Power Usage and Theoretical Benchmarks
Power Consumption (Max TDP)
| Radeon HD 5450 |
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19 Watts |
| Radeon HD 7750 |
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55 Watts |
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Memory Bandwidth
Theoretically speaking, the Radeon HD 7750 should perform much faster than the Radeon HD 5450 in general. (explain)
| Radeon HD 7750 |
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72000 MB/sec |
| Radeon HD 5450 |
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12800 MB/sec |
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Texel Rate
The Radeon HD 7750 is much (about 392%) better at anisotropic filtering than the Radeon HD 5450. (explain)| Radeon HD 7750 |
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25600 Mtexels/sec |
| Radeon HD 5450 |
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5200 Mtexels/sec |
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Pixel Rate
If using lots of anti-aliasing is important to you, then the Radeon HD 7750 is the winner, and very much so. (explain)| Radeon HD 7750 |
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12800 Mpixels/sec |
| Radeon HD 5450 |
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2600 Mpixels/sec |
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Please note that the above 'benchmarks' are all just theoretical - the results were calculated based on the card's specifications, and real-world performance may (and probably will) vary at least a bit.
Price Comparison
Radeon HD 5450Amazon.com
Check prices at:
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Radeon HD 7750Amazon.com
Check prices at:
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Please note that the price comparisons are based on search keywords - sometimes it might show cards with very similar names that are not exactly the same as the one chosen in the comparison. We do try to filter out the wrong results as best we can, though.
Specifications
| Model | Radeon HD 5450 | Radeon HD 7750 |
|---|---|---|
| Manufacturer | AMD | AMD |
| Year | February 4, 2010 | February 2012 |
| Code Name | Cedar PRO | Cape Verde Pro |
| Memory | 512 MB | 1024 MB |
| Core Speed | 650 MHz | 800 MHz |
| Memory Speed | 1600 MHz | 4500 MHz |
| Power (Max TDP) | 19 watts | 55 watts |
| Bandwidth | 12800 MB/sec | 72000 MB/sec |
| Texel Rate | 5200 Mtexels/sec | 25600 Mtexels/sec |
| Pixel Rate | 2600 Mpixels/sec | 12800 Mpixels/sec |
| Unified Shaders | 80(16x5) | 512 |
| Texture Mapping Units | 8 | 32 |
| Render Output Units | 4 | 16 |
| Bus Type | DDR3 | GDDR5 |
| Bus Width | 64-bit | 128-bit |
| Fab Process | 40 nm | 28 nm |
| Transistors | 292 million | 1500 million |
| Bus | PCIe 2.1 x16 | PCIe 3.0 x16 |
| DirectX Version | DirectX 11 | DirectX 11.1 |
| OpenGL Version | OpenGL 3.2 | OpenGL 4.2 |
Memory Bandwidth: Memory bandwidth is the largest amount of information (measured in MB per second) that can be moved over the external memory interface in one second. The number is worked out by multiplying the card's interface width by the speed of its memory. In the case of DDR type RAM, it should be multiplied by 2 again. If it uses DDR5, multiply by ANOTHER 2x. The higher the bandwidth is, the better the card will be in general. It especially helps with AA, High Dynamic Range and high resolutions.
Texel Rate: Texel rate is the maximum number of texture map elements (texels) that are applied per second. This figure is worked out by multiplying the total amount of texture units by the core clock speed of the chip. The higher this number, the better the graphics card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels per second.
Pixel Rate: Pixel rate is the maximum amount of pixels that the graphics chip can possibly record to the local memory in a second - measured in millions of pixels per second. The number is calculated by multiplying the amount of ROPs by the the card's clock speed. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel rate is also dependant on quite a few other factors, most notably the memory bandwidth of the card - the lower the bandwidth is, the lower the potential to reach the max fill rate.
Radeon HD 5450Amazon.com
Check prices at:
|
Radeon HD 7750Amazon.com
Check prices at:
|
Please note that the price comparisons are based on search keywords - sometimes it might show cards with very similar names that are not exactly the same as the one chosen in the comparison. We do try to filter out the wrong results as best we can, though.
|
Comments
3 Responses to “Radeon HD 5450 vs Radeon HD 7750”Man Hopeful i can upgrade soon lol
I should have bought the 7750 in the first place, instead of blindly buying the 5450. It doesn't do anything of worth, apart from play videos at 320x240 with lag, flames and locusts spilling out of the case.
Wow, you are a sucker if you purchased the 5450. I can play modern games at 1080p on high settings with the 7750.